israel carried out a ground invasion. there's growing concern that that may happen this time around as well. palestinian factions say that will not deter them, despite israel's claims to have destroyed rocket warehouses and munition depots. they are still capable of firing rockets deep into israel. today they were able to fire rockets into the suburbs of tel aviv. >> israel is prepared to take whatever action is necessary. to defend our people. >> reporter: meanwhile on the diplomatic front, egypt continues to try to negotiate a truce between palestinian militant factions and israel. so far, that has not succeeded. but on friday egypt's prime minister is expected to make an unprecedented visit to the gaza strip. he's coming here with the hopes of perhaps mediating that truce. nonetheless, it is going to present a very interesting dilemma for the israelis, knowing a high-ranking egyptian is in gaza while they're trying to carry out this military operation. nbc news, gaza city, gaza. >>> there is new video from new york's p